package com.xma.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @Author: arthur
 * @License: (C) Copyright 2020-2028, xxx Corporation Limited.
 * @Contact: 413911174@qq.com
 * @Date: 2020/6/26 18:52
 * @Version: 1.0
 * @Description:
 */
@Service
public class PaymentService {

    // 模拟无耗时请求
    public String paymentInfo_OK(Integer id){
        return  "线程池:——" + Thread.currentThread().getName() + "  paymentInfo_OK,id  "  +  id
                 + "\t" + "成功";
    }
    // 模拟耗时请求
  /*  public String paymentInfo_TimeOut(Integer id){
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (Exception e){
            e.printStackTrace();
        }
        return  "线程池： " + Thread.currentThread().getName() + " paymentInfo_TimeOur ,id " + "\t"  + "成功 耗时" +timeNumber  +  "秒中";
    }*/
    //模拟服务降级
    //降级配置
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "3000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timeNumber = 5;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (Exception e){
            e.printStackTrace();
        }
        return  "线程池： " + Thread.currentThread().getName() + " paymentInfo_TimeOur ,id " + "\t"  + "成功 耗时" +timeNumber  +  "秒中";
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池:  " +  Thread.currentThread().getName() + " 系统繁忙或者运行报错，请稍后再试，id  " + id + "\t" + "😭" ;
    }

    //==服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled" ,value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少跳闸
    })
    public String paymentCircuitBreadker(@PathVariable("id") Integer id){
        if(id < 0){
            throw new RuntimeException("****** id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号: " + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return  "id 不能负数，请稍后再试， 😭~~~~~ id：" + id;
    }

}
